Operating mechanism for dirigible headlights



July 5, 1927. ,097

T. P. SALLEY OPERATING MECHANISM FOR DIRIGIBLE IiEADLIGHTS OriginalFiledjlarch 2'7. 1926 ."Ilnmnlll" ahlflllllllzilllllllllllillilllllllllll HIHWIK INVENTOR ATTORNEYS BY V I PatentedJuly 5, 1927.

* was? UNITED STATES PATENT .o r r cs.

i THoM'Asr. sALI iEx'oF MOBILE, ALABAMA.

OPERATING MECHANISM FOR ,IDIRIGIBLE HEADLIGHTS.

Application filed March 27 15335561 12 1 ir -B7356. Renewed Januar 2'9,1927.

sides in the provision of simple and durable.

means forproperly mounting and maintain ing the headiight in normalposition and yet causing automatic operation as hereinabove .set forth,the operating mechanism being reliable and smooth in operation and. easyand comparatively inexpensive to manufacture and install. v

Other objects and advantages reside in certain novel features of theCOIlStlUCtlOll.

arrangementjand combination of parts which U will be hereinafter morefully described and particularly pointed out in the appended claims,reference being had to the accompanying drawings forming a part of thisspecification, and in which Figure 1 is a fragmentary view in sideelevation showing a locomotive headlight equipped with operatingmechanism embodying the present invention, 7

Figure 2 is a view in front elevation further illustrating the operatingmechanism,

the headlight being removed for the sakeof illustration, and Figure 3 isa view in side elevation of the parts illustrated in Figure 2. Referringto the drawings the numeral 1 designates a locomotive and the numeral 2designates the headlight thereof.

The present invention proposes the provision of a horizontally disposedrotatable table or headlight support 3, the same comprising a dischavinga bearing at its center which rotatably receives the reduced upper endof a supporting shaft 4, the supporting shaft 4 being suitablysecured'to the boiler of the locomotive. I

Rearwardly of the headlight 2 a frame or bracket 5 is provided and hasits lower end fastened to the boiler of the locomotive. At its upper endthe frame 5 carries a stud shaft 6 on which a gear sector? is rotatablysupported, the sector 7 having a bearing 8 receiving the stud shaft. Anut 9 prevents accidental endwise displacement of the gear sector. Asillustrated in Figure 2 the gear sector has the general form oftriangle, at the apex of which the bearing 8 is located. Bars 10constitute the sides of the gear sector and are integ al with a curvedbar 1-1 having gear teeth 12. it weight supporting arm is fastened, asat 16, to the bars 10 of the sectorv and the opposite ends of this arm15 project beyond the sector and carry weights 1?, the weights 17 havinggrooves 18 in which the ends of the arms are fitted.

Weights-may be adjusted along the arms and are held in ad usted positionby means of screws l9fextending' through slots 20 pro vided in the endsof the arms 15, the shanks of the screws having threaded engagement withthe weights and the heads of the screws having binding engagement withthe ends of the arms. The motion of the gear sector is transmitted tothe table or headlight support by means of a gear element 25 pivota'llysupported intermediate its ends on the frame" 5, as at'QG, and havingone end provided with gear teeth 27 which mesh with the gear teeth 12.The other end of the gear element has gear teeth 28 which mesh withbevel gear teeth 29rprovided on the table 3. lVith.

position. As is well knowncurvesof rail- H roads are banked; that is,the rail on one side is higher than the rail on the other.

As a consequence of this construction when a locomotive rounds a curveit is transversely tilted. This transverse tilting of the l0comotiveaffects the automatic operation of the headlight control means in thatit causes the bracket 5 to shift relative to the weight 17, therebycausing the gear element 25 to be moved and the motion of the gearelement to be transmitted to the headlight support for rotatingthe'headlight to cause it to follow'thecurve of the road.

I claim:

1. Operating mechanism for the headlight of a locomotive comprising arotatable table designed to receive and support the headlight, astationary frame, a gear sector pivotally supported on said frame, aweight supporting arm fixed to the gear sector and having slots,weights-having slotsin which the lio ' slotted portions or" the arm arefitted, and

fastening means extending through the slots of the arm and engageableWith the Weights for holding the weights in adjusted position, and agear'elem-ent between the gear sector and the table.

2. Operating mechanism for the headlight of a locomotive comprising arotatable table designed to receive and support the head- 10 light, astationary frame, a gear sector pivotally supported on said frame, aWeight-supporting arm fixed to the gear sector and having portionsprojecting laterally on the opposite sides of the gear sector, Weightsadjustably mounted on the opposite end portions of the arms, means forholding the Weights in adjusted position, and a gear element between thegear sector and the table.

THOMAS P. SALLEY.

